diff options
| -rw-r--r-- | drivers/net/s2io.c | 101 | ||||
| -rw-r--r-- | drivers/net/s2io.h | 4 |
2 files changed, 64 insertions, 41 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index 668327ccd8d0..1d37f0c310ca 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -3130,7 +3130,6 @@ static void tx_intr_handler(struct fifo_info *fifo_data) pkt_cnt++; /* Updating the statistics block */ - nic->dev->stats.tx_bytes += skb->len; swstats->mem_freed += skb->truesize; dev_kfree_skb_irq(skb); @@ -4901,48 +4900,81 @@ static void s2io_updt_stats(struct s2io_nic *sp) * Return value: * pointer to the updated net_device_stats structure. */ - static struct net_device_stats *s2io_get_stats(struct net_device *dev) { struct s2io_nic *sp = netdev_priv(dev); - struct config_param *config = &sp->config; struct mac_info *mac_control = &sp->mac_control; struct stat_block *stats = mac_control->stats_info; - int i; + u64 delta; /* Configure Stats for immediate updt */ s2io_updt_stats(sp); - /* Using sp->stats as a staging area, because reset (due to mtu - change, for example) will clear some hardware counters */ - dev->stats.tx_packets += le32_to_cpu(stats->tmac_frms) - - sp->stats.tx_packets; - sp->stats.tx_packets = le32_to_cpu(stats->tmac_frms); - - dev->stats.tx_errors += le32_to_cpu(stats->tmac_any_err_frms) - - sp->stats.tx_errors; - sp->stats.tx_errors = le32_to_cpu(stats->tmac_any_err_frms); - - dev->stats.rx_errors += le64_to_cpu(stats->rmac_drop_frms) - - sp->stats.rx_errors; - sp->stats.rx_errors = le64_to_cpu(stats->rmac_drop_frms); - - dev->stats.multicast = le32_to_cpu(stats->rmac_vld_mcst_frms) - - sp->stats.multicast; - sp->stats.multicast = le32_to_cpu(stats->rmac_vld_mcst_frms); - - dev->stats.rx_length_errors = le64_to_cpu(stats->rmac_long_frms) - - sp->stats.rx_length_errors; - sp->stats.rx_length_errors = le64_to_cpu(stats->rmac_long_frms); + /* A device reset will cause the on-adapter statistics to be zero'ed. + * This can be done while running by changing the MTU. To prevent the + * system from having the stats zero'ed, the driver keeps a copy of the + * last update to the system (which is also zero'ed on reset). This + * enables the driver to accurately know the delta between the last + * update and the current update. + */ + delta = ((u64) le32_to_cpu(stats->rmac_vld_frms_oflow) << 32 | + le32_to_cpu(stats->rmac_vld_frms)) - sp->stats.rx_packets; + sp->stats.rx_packets += delta; + dev->stats.rx_packets += delta; + + delta = ((u64) le32_to_cpu(stats->tmac_frms_oflow) << 32 | + le32_to_cpu(stats->tmac_frms)) - sp->stats.tx_packets; + sp->stats.tx_packets += delta; + dev->stats.tx_packets += delta; + + delta = ((u64) le32_to_cpu(stats->rmac_data_octets_oflow) << 32 | + le32_to_cpu(stats->rmac_data_octets)) - sp->stats.rx_bytes; + sp->stats.rx_bytes += delta; + dev->stats.rx_bytes += delta; + + delta = ((u64) le32_to_cpu(stats->tmac_data_octets_oflow) << 32 | + le32_to_cpu(stats->tmac_data_octets)) - sp->stats.tx_bytes; + sp->stats.tx_bytes += delta; + dev->stats.tx_bytes += delta; + + delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_errors; + sp->stats.rx_errors += delta; + dev->stats.rx_errors += delta; + + delta = ((u64) le32_to_cpu(stats->tmac_any_err_frms_oflow) << 32 | + le32_to_cpu(stats->tmac_any_err_frms)) - sp->stats.tx_errors; + sp->stats.tx_errors += delta; + dev->stats.tx_errors += delta; + + delta = le64_to_cpu(stats->rmac_drop_frms) - sp->stats.rx_dropped; + sp->stats.rx_dropped += delta; + dev->stats.rx_dropped += delta; + + delta = le64_to_cpu(stats->tmac_drop_frms) - sp->stats.tx_dropped; + sp->stats.tx_dropped += delta; + dev->stats.tx_dropped += delta; + + /* The adapter MAC interprets pause frames as multicast packets, but + * does not pass them up. This erroneously increases the multicast + * packet count and needs to be deducted when the multicast frame count + * is queried. + */ + delta = (u64) le32_to_cpu(stats->rmac_vld_mcst_frms_oflow) << 32 | + le32_to_cpu(stats->rmac_vld_mcst_frms); + delta -= le64_to_cpu(stats->rmac_pause_ctrl_frms); + delta -= sp->stats.multicast; + sp->stats.multicast += delta; + dev->stats.multicast += delta; - /* collect per-ring rx_packets and rx_bytes */ - dev->stats.rx_packets = dev->stats.rx_bytes = 0; - for (i = 0; i < config->rx_ring_num; i++) { - struct ring_info *ring = &mac_control->rings[i]; + delta = ((u64) le32_to_cpu(stats->rmac_usized_frms_oflow) << 32 | + le32_to_cpu(stats->rmac_usized_frms)) + + le64_to_cpu(stats->rmac_long_frms) - sp->stats.rx_length_errors; + sp->stats.rx_length_errors += delta; + dev->stats.rx_length_errors += delta; - dev->stats.rx_packets += ring->rx_packets; - dev->stats.rx_bytes += ring->rx_bytes; - } + delta = le64_to_cpu(stats->rmac_fcs_err_frms) - sp->stats.rx_crc_errors; + sp->stats.rx_crc_errors += delta; + dev->stats.rx_crc_errors += delta; return &dev->stats; } @@ -7455,15 +7487,11 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) } } - /* Updating statistics */ - ring_data->rx_packets++; rxdp->Host_Control = 0; if (sp->rxd_mode == RXD_MODE_1) { int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2); - ring_data->rx_bytes += len; skb_put(skb, len); - } else if (sp->rxd_mode == RXD_MODE_3B) { int get_block = ring_data->rx_curr_get_info.block_index; int get_off = ring_data->rx_curr_get_info.offset; @@ -7472,7 +7500,6 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp) unsigned char *buff = skb_push(skb, buf0_len); struct buffAdd *ba = &ring_data->ba[get_block][get_off]; - ring_data->rx_bytes += buf0_len + buf2_len; memcpy(buff, ba->ba_0, buf0_len); skb_put(skb, buf2_len); } diff --git a/drivers/net/s2io.h b/drivers/net/s2io.h index 47c36e0994f5..5e52c75892df 100644 --- a/drivers/net/s2io.h +++ b/drivers/net/s2io.h @@ -745,10 +745,6 @@ struct ring_info { /* Buffer Address store. */ struct buffAdd **ba; - - /* per-Ring statistics */ - unsigned long rx_packets; - unsigned long rx_bytes; } ____cacheline_aligned; /* Fifo specific structure */ |